How do you do , Mr.Smith ? This is Lili . I'm calling to thank you for the wonderful dinner we had yesterday . I enjoyed it very much .   You're welcome . I'd like you to join us for dinner again sometime .   Thank you , Mr.Smith . I'm returning to China today .   Today ?   Yes . I appreciate all help and in particular , all the time that you've spent on my account during my stay here .   Don't mention it . I am pleased to help you .   If there's anything that I can help you in the future , please let me know .   I'll do that.Thank you.Have a safe trip home . 